Specter Light brings the same benefits to those who prefer a 5.56 weapon. Grey Ghost says they decided to make rifles that are durable, reliable, affordable, accurate and attainable without ...

Light-dependent magnetoreception in birds: the crucial step occurs in the dark. Journal of The Royal Society Interface, 2016; 13 (118): 20151010 DOI: 10.1098/rsif.2015.1010 ...